Discontinued Operations (Summary Of The Financial Information For The Discontinued Operations) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				12 Months Ended
	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Discontinued Operations and Disposal Groups [Abstract]
Revenue from discontinued operations	$ 93	$ 163	$ 1,048	$ 978	$ 0	$ 2,300	$ 3,500
Income from discontinued operations					$ 0	$ 957	$ 976